18650658520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{9461}}^1$

素因数の和:9725

約数の個数: 128

約数和(自身を含む): 48069987840

約数和(自身を除く): 29419329320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 223, 260, 340, 442, 446, 520, 680, 884, 892, 1105, 1115, 1768, 1784, 2210, 2230, 2899, 3791, 4420, 4460, 5798, 7582, 8840, 8920, 9461, 11596, 14495, 15164, 18922, 18955, 23192, 28990, 30328, 37844, 37910, 47305, 49283, 57980, 75688, 75820, 94610, 98566, 115960, 122993, 151640, 160837, 189220, 197132, 245986, 246415, 321674, 378440, 394264, 491972, 492830, 614965, 643348, 804185, 983944, 985660, 1229930, 1286696, 1608370, 1971320, 2090881, 2109803, 2459860, 3216740, 4181762, 4219606, 4919720, 6433480, 8363524, 8439212, 10454405, 10549015, 16727048, 16878424, 20908810, 21098030, 27427439, 35866651, 41817620, 42196060, 54854878, 71733302, 83635240, 84392120, 109709756, 137137195, 143466604, 179333255, 219419512, 274274390, 286933208, 358666510, 466266463, 548548780, 717333020, 932532926, 1097097560, 1434666040, 1865065852, 2331332315, 3730131704, 4662664630, 9325329260, 18650658520]

約数ペア:

[(1, 18650658520), (2, 9325329260), (4, 4662664630), (5, 3730131704), (8, 2331332315), (10, 1865065852), (13, 1434666040), (17, 1097097560), (20, 932532926), (26, 717333020), (34, 548548780), (40, 466266463), (52, 358666510), (65, 286933208), (68, 274274390), (85, 219419512), (104, 179333255), (130, 143466604), (136, 137137195), (170, 109709756), (221, 84392120), (223, 83635240), (260, 71733302), (340, 54854878), (442, 42196060), (446, 41817620), (520, 35866651), (680, 27427439), (884, 21098030), (892, 20908810), (1105, 16878424), (1115, 16727048), (1768, 10549015), (1784, 10454405), (2210, 8439212), (2230, 8363524), (2899, 6433480), (3791, 4919720), (4420, 4219606), (4460, 4181762), (5798, 3216740), (7582, 2459860), (8840, 2109803), (8920, 2090881), (9461, 1971320), (11596, 1608370), (14495, 1286696), (15164, 1229930), (18922, 985660), (18955, 983944), (23192, 804185), (28990, 643348), (30328, 614965), (37844, 492830), (37910, 491972), (47305, 394264), (49283, 378440), (57980, 321674), (75688, 246415), (75820, 245986), (94610, 197132), (98566, 189220), (115960, 160837), (122993, 151640)]